Q: What are the prime factors of the number 688,882,688?

 A: 2, 13, 51749

Why are those the prime factors of the number 688,882,688?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 688,882,688

688,882,688
Factor Arrows
2344,441,344
Factor Arrows
2172,220,672
Factor Arrows
286,110,336
Factor Arrows
243,055,168
Factor Arrows
221,527,584
Factor Arrows
210,763,792
Factor Arrows
25,381,896
Factor Arrows
22,690,948
Factor Arrows
21,345,474
Factor Arrows
2672,737
Factor Arrows
1351,749

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 13, 51749

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 13 x 51,749 = 688,882,688

This can also be written as 210 x 131 x 51,7491 = 688,882,688

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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